General purpose fully porous C18 (USP L1) column suitable for the analysis of a wide range of compounds from acidic through slightly basic. Pore size: 100A, surface area: 300 m2/g, 20% carbon load, endcapped. pH range 2.5-8.0, maximum temperature 80C. Guard column REST-917420210 is recommended with Trident Level 2 holder (guard only) REST-27472 or Trident Level 3 holder (guard + filter) REST-27474 to protect the analytical column.